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MAINTENANCE IN TRANSDUCERS ACOUSTIC LENS EXCHANGE

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Rogerio Ferreira

MAINTENANCE IN TRANSDUCERS ACOUSTIC LENS EXCHANGE

August 28, 2017 10:53

Hello, my name is Rogerio, I'm an engineer and I'm currently working with maintenance on transducers. I would like to count on your help ...
I need a course or some material with information about the maintenance of transducers. Opening procedures and change of the acoustic lens, could you inform me, is there any website, any book, any course or even websites selling the products for the acoustic lens Of medical transducers ?? I'm counting on your help.

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Matt Tomory

re: MAINTENANCE IN TRANSDUCERS ACOUSTIC LENS EXCHANGE

August 29, 2017 09:06

Hello Rogerio, I have been in the ultrasound industry for 31 years and am an avid do-it-yourselfer but a transducer lens is NOT a repair that should be performed unless you have acoustic and materials engineering expertise and precise equipment and materials to recreate the lens exactly like the OEM did when manufactured. The slightest deviation in thickness WILL affect penetration, resolution, power output and Doppler sensitivity. Shape deviations WILL affect focus and resolution. There are shortcuts out there but diagnostic outcomes will be negatively affected if this is not performed EXACTLY correctly. I am happy to provide more information if you like. Please email me at: matt.tomory@bayer.com

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Christian Zasue Ordaz

re: MAINTENANCE IN TRANSDUCERS ACOUSTIC LENS EXCHANGE

September 13, 2017 10:58

Hello, You need to buy or develop tools that allow you to do it with accuracy as comments friend Matt.

a transducer holder
A plastic mold for membrane
a vacuum chamber
a bistury
Magnifying glass or microscope
Membrane Silicon


Design these tools yourself and take them to a 3D printing service, take an example of the measurement of the thickness of the original membrane to design the depth of your mold,

silicon for membrane you get it in united states, a company Specialized in this type of materials, they can advise you the silicon suitable for you, sells it in practical air-free syringes, ready to pour, sizes available are 1cc, 3cc, 5cc, 10cc, 30cc, and 55cc, when you empty it into the glass, make it inside the vacuum chamber and correct the air problem between the new membrane and the glass.

here I leave you a basic design link of a vacuum camera on youtube: https://www.youtube.com/watch?v=jZlN-Yy7mHg

the old membrane removes it by hand with the bistury very carefully, I have previously broken crystals trying to do it by not having proper care. so I recommend doing it practicing with 2 or 3 old transducers that you have and do not mind destroying, in order to improve your technique before moving to your client's transducer.

with the old transducers you have, try to remove the membrane residues with thiner, isopropyl alcohol, acetone or thinner for silicone and other solvents until you decide which is the most suitable for you.

If you do not want to design them yourself, find a specialist in each area that is willing to help you,

comment and share with me your progress. If you need help with your designs, I can help you for free. zasuemedical@gmail.com

and remember, knowledge is of no use but you share it. when you are ready, share it

I hope to hear from you very soon, regards

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